Main Reaction: Phenylalanine >> 4-coumaroyl-CoA

Reference: PubMed ID: 23397456
Authors: Weston LA, Mathesius U
Title: Flavonoids: their structure, biosynthesis and role in the rhizosphere, including allelopathy.
Published: 2013 Feb

Phenylalanine --> 4-coumaroyl-CoA